Insole-based gait analysis

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Title Insole-based gait analysis
Publication Type thesis
School or College College of Engineering
Department Mechanical Engineering
Author Howell, Adam M.
Date 2012-05
Description Abnormal gait caused by stroke or other pathological reasons can greatly impact the life of an individual. Being able to measure and analyze that gait is often critical for rehabilitation. Motion analysis labs and many current methods of gait analysis are expensive and inaccessible to most individuals. The low cost, wearable, and wireless insole-based gait analysis system in this study provides kinetic measurements of gait by using low cost force sensitive resistors. This thesis describes the design and fabrication of two insoles and their evaluation with 10 control subjects and eight hemiplegic stroke subjects. The first insole used 32 force sensitive resistors and was used to determine the ideal locations of 12 sensors in the second insole. Linear regression was used on training data for each subject testing the second insole to determine ground reaction force, ankle dorsiflexion / plantarflexion moment, knee flexion / extension moment, and knee abduction / adduction moment. Comparison with data collected simultaneously from a clinical motion analysis laboratory demonstrated that the insole results for ground reaction force and ankle moment were highly correlated (all > 0.95) for all subjects, while the two knee moments were less strongly correlated (generally > 0.80). This provides a means of cost effective and efficient healthcare delivery of mobile gait analysis that can be used anywhere from large clinics to an individual's home. The two insoles also provide the means for further testing of force sensitive resistors in different applications.
Type Text
Publisher University of Utah
Subject Ankle moment; Force sensitive resistor; Gait analysis; Ground reaction force; Insole; Orthotic
Subject LCSH Gait in humans; Human mechanics
Dissertation Institution University of Utah
Dissertation Name Master of Science
Rights Management Copyright © Adam M. Howell 2012
Format application/pdf
Format Medium application/pdf
Format Extent 1,818,458 bytes
Identifier us-etd3/id/651
Source Original in Marriott Library Special Collections, QP6.5 2012 .H688
ARK ark:/87278/s6f483wv
Setname ir_etd
ID 194816
Reference URL https://collections.lib.utah.edu/ark:/87278/s6f483wv
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